<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>CSS3边框属性</title>
<style>
	div{ width:150px; height:150px; border:5px black solid; 
		box-shadow:10px 10px 5px 10px red; }
</style>
</head>
<body>
<div></div>
</body>
</html>
